Olivia Wilde and Jason Sudeikis have a baby boy

FILE - In this Sunday, March 2, 2014 file photo, Olivia Wilde, and Jason Sudeikis arrive at the Oscars at the Dolby Theatre in Los Angeles. It's a boy for Wilde and Sudekis. A spokeswoman for the "Tron: Legacy" actress said the couple welcomed son Otis Alexander on Sunday, April 20, 2014. (Photo by Chris Pizzello/Invision/AP, file)

A spokeswoman for the “Tron: Legacy” actress confirms the couple welcomed son Otis Alexander on Sunday.

Wilde posted a message on Twitter Wednesday with a photo of her cuddling the newborn. It says, “Ladies and gentlemen, Otis Alexander Sudeikis has LEFT the building!” and then notes in parentheses that she’s the building.

The 30-year-old “Rush” and “House” actress is engaged to the 38-year-old “We’re the Millers” actor and former star of “Saturday Night Live.”